/**
 *   类说明
 * 
 *   @creator         xldc	497937995@qq.com  
 *   @create-time     2014年1月20日   下午1:25:14   
 */
package com.huacheng.cms.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.huacheng.cms.constant.SystemConstant;
import com.huacheng.cms.model.Admin;

public class AdminFilter implements Filter {

	@Override
	public void destroy() {
		// TODO Auto-generated method stub

	}

	@Override
	public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain)
			throws IOException, ServletException {
		HttpServletRequest request = (HttpServletRequest) servletRequest;
		HttpServletResponse response = (HttpServletResponse) servletResponse;
		Admin admin = (Admin) request.getSession().getAttribute(SystemConstant.SESSION_ADMIN);
		if (admin == null) {
			String path = request.getContextPath();
			String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
					+ path;
			response.sendRedirect(basePath + "/auth/admin/login.htm");
		} else {
			chain.doFilter(request, response);
		}
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub

	}

}
